Expired Canadian patentCanada
Passive acoustics process to monitor fluidized bed flow
CA 2010453 C · Owner: Elzinga, Eugene Robert Jr. · Inventors: Cody, George Dewey; Baker, Charles Lambert Jr.; Elzinga, Eugene Robert Jr.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the non-intrusive , determination of flow anisotropy through the cross-section of a two phase fluid bed reactor.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 20, 1990 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 20, 1990
GrantedApril 4, 2000
Term endedFebruary 20, 2010
Patent numberCA 2010453 C
Classification (IPC)G01F1/66 +2 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.